Adding new user to a group in Ubuntu

To create a new user in Ubuntu type:

sudo adduser -ingroup GROUP USERNAME

or

sudo adduser USERNAME
(adds the user and asks you questions about the user)

sudo usermod -G GROUP USERNAME
(changes the primary group of a user, set it to 'lab')

sudo passwd USERNAME
(sets the password of the new user, which should be changed upon first login)

sudo chown -R USERNAME:GROUP /home/USERNAME/
(recursively sets the ownership of the files of the user to GROUP)

Zoe